Author
- Pietro de' Crescenzi1
- Pius II1
- Pius IV1
- Platonic Academy1
- Podestà of Monterubbiano (Italy)1
- Podestà of Monticchiello (Italy)1
- Podestà of Perugia1
- Pomponius Mela1
- Porcellio1
- Porphyry1
- Prince-Bishopric of Toul1
- Priscian1
- Pseudo-Augustine1
- Pseudo-Phalaris1
- Ptolemaeus Tancredius1
- Ramon Llull1
- Ranuccio Farnese1
- Rapolano Terme1
- Raymond of Penyafort1
- Raymond of Sabunde1